Effects of Movement Retraining on Knee Loading in Individuals With Knee Osteoarthritis

NCT ID: NCT06208631

Last Updated: 2025-10-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

31 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-01-18

Study Completion Date

2026-12-31

Brief Summary

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This study investigates how well individuals with knee osteoarthritis can learn to alter their calf muscle activation using haptic biofeedback while walking and evaluates how these changes affect knee loading.

Prior research has utilized musculoskeletal simulations to determine that reducing the activation of one of the calf muscles, the gastrocnemius, can have a large impact on reducing knee loading. However, this has not been tested in individuals with knee osteoarthritis. In this study, participants will be trained to alter the activation of their gastrocnemius muscle, by receiving haptic feedback after each step. The feedback will indicate how the participant changed their muscle activation relative to baseline. Some participants will train on a treadmill in the laboratory for up to two sessions, with 30 minutes of walking with feedback in each session. If a participant can learn to adjust their muscle activation in the first training session, they will be able to complete the second training session. Other participants will train outside the laboratory for one session with 30 minutes of walking with feedback to investigate changes in knee loading while using the new walking strategy during over-ground walking.

The movement data collected during the training sessions will be used as inputs to computer simulations of the musculoskeletal system to determine if walking with the new muscle activation strategy reduces knee loading.

Detailed Description

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Conditions

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Osteoarthritis, Knee

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Gait modification

Participants will learn to change muscle coordination while walking through real-time haptic biofeedback based on the activation of the gastrocnemius muscle

Group Type EXPERIMENTAL

Gait retraining

Intervention Type BEHAVIORAL

Changing muscle coordination while walking

Interventions

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Gait retraining

Changing muscle coordination while walking

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Medial and/or lateral compartment knee osteoarthritis
* Diagnosed with knee osteoarthritis of at least six months duration
* Ambulatory without aids
* Able to walk for at least 60 minutes
* Typical pain rating less than or equal to 4 on scale of 0-10
* Able to reduce gastrocnemius muscle activation by 10% from baseline

Exclusion Criteria

* History of symptomatic arthritis in lower limb joints other than the knees
* Replacement of any lower extremity joint
* Symptoms originating from the patellofemoral joint
* Body mass index equal to or greater than 35
* Nerve or muscle disease associated with walking difficulty
* History of rheumatoid arthritis, gout, or autoimmune disease
* History of lower limb fracture or surgery requiring hospitalization
* Pregnant
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Stanford University

OTHER

Sponsor Role lead

Responsible Party

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Scott Delp

Professor of Bioengineering and Mechanical Engineering

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Scott L Delp, PhD

Role: PRINCIPAL_INVESTIGATOR

Stanford University

Locations

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Stanford Human Performance Lab

Stanford, California, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Study Team

Role: CONTACT

650-721-2547

Facility Contacts

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Scott D Uhlrich, PhD

Role: primary

650-721-2547

References

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Lee KJ, Hahm KB, Kim YS, Kim JH, Cho SW, Jie H, Park CH, Yim H. The usefulness of Tc-99m HMPAO labeled WBC SPECT in eosinophilic gastroenteritis. Clin Nucl Med. 1997 Aug;22(8):536-41. doi: 10.1097/00003072-199708000-00005.

Reference Type BACKGROUND
PMID: 9262899 (View on PubMed)

Kather L, Smidt D. [Composition of porcine uterine secretion]. Berl Munch Tierarztl Wochenschr. 1974 Oct 1;87(19):372-4. No abstract available. German.

Reference Type BACKGROUND
PMID: 4409006 (View on PubMed)

Other Identifiers

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34928

Identifier Type: -

Identifier Source: org_study_id

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